Background
A drifting sensor platform for ocean research is a small and cheap device which is able to measure water temperature and salinity on the waters surface. Oceanographers need these information to build models to investigate on water densities and ocean currents. Since the properties of the water strongly change in the upper water layer, not only surface information but also measurements in the first meter depths are of great interest. So far those kind of measurements bring a simple and cheap drifter to its limitations and much larger and more expensive tools have to be used.
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Example Images show the deployment of a Carthe Drifter
Task Description
Given is a Drifter, which already has the implementations for measuring Temperature and Salinity on the waters surface. The Drifters dimensions are shown in the figure below.
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To keep the Drifter a low-cost device, the total costs of the diving device should be less than 100€.
Diving Procedure
The diving procedures are determined by the drifters logic and the divers logic needs to process the given instructions to control the diving process. A Diving procedure contains a set of three different water depths (up to a maximum of 10meters) which should be reached within a time frame of 2 minutes. Each target depths should be hold for 10 seconds with an accuracy of +/-0.1m. The diver should keep its horizontal position at the moment of the start diving signal. Due to currents in the water, the divers downwards path might be disturbed in horizontal directions.
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